In this case, the server decides which website to connect you to, depending on your request. Because they are hosted on the same server. It often happens that several sites have the same public IP address. It’s like the yellow pages, but without the hassle. And the servers will connect you to the corresponding IP address. In these servers, there are the correspondence tables with domain names and public IP address. To make it simple, when you type the name of a website, you send a request for information to DNS servers. Therefore, if you want to reach 212.58.244.26, you’ll type the domain name Pretty cool huh? Because we’re using user-friendly addresses, thanks to the DNS. But does 212.58.244.26 ring a bell? No, it doesn’t, even if you’ve been visiting the website every day. And websites are hosted on servers, with public IP addresses. You’ll ask me: Why do we need to resolve domain names? Well, every internet connected device, and every internet connection, has a unique IP address that is used to identify it. So what is it? Wikipedia says: “ The Domain Name System is a hierarchical decentralized naming system for computers, services, or any resource connected to the Internet or a private network.” In other words, it’s a system which resolves domain names on the Internet. If you’re on my website, it’s a good bet that you’ve used the DNS even without realizing it. Let me put on a bib overall and brush my mustache. A threat that millions of Internet users are facing. Indeed, it’s a problem VPN users are facing… There is no leak when you’re not using a VPN: All your data are flowing in the clear anyway! But for people who are protecting their privacy, it’s a real threat. Why you should worry about DNS leak protectionįirst, I must say that it’s not a strategy to convince you to purchase a VPN – even if you should. Why you should worry about DNS leak protection.It is recommended you invest in a better VPN, such as those listed above, with built-in leak protection instead of paying for additional third-party software. As these solutions cost money, they should be last resorts. Enable DNS leak protection in the settings. The Pro version of VPNCheck and OpenVPN Watchdog are both paid software used to protect users from VPN connection failure and other issues, including DNS leaks. v10.10 through v10.10.3: sudo discoveryutil mdnsflushcache.v10.10.4 or later: sudo killall -HUP mDNSResponder.Enter the following commands based on your version of OSX:.Go to Applications > Utilities > Terminal.Copy/paste the following and hit Enter: ipconfig /flushdns.Old DNS entries might be corrupting your DNS settings. Enter the following: netsh interface teredo set state disabled. ![]() Search for Command Prompt in your taskbar, right click it, and select "Run as administrator". ![]() Sometimes it sends the converted request through a non-VPN tunnel. Teredo is a Windows tool that turns IPv6 requests into IPv4 requests. Go to the website to find the nearest DNS server address.Here are some DNS nameserver addresses (IPv4 unless otherwise stated) that are popular and reliable: The exact process to do this depends on your operating system. You can also ask your VPN provider's customer support for its DNS nameserver addresses. ![]() You will need to manually replace the preferred and alternate DNS nameservers in your device's internet settings. ![]()
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